The floor is bugged because the base object is VERY large and the game has a tough time rendering something that big
It's often beneficial to look at your mod using different graphical settings, certain options give birth to certain anomalies and it can be good to be mindful of these as most people probably won't be running your exact graphical setup of the game

One important thing to think about, most people hate not being able to zoom out and look at their toris from different angles. Suggest you leave some empty room for your next parkour map, keep it up man!

It's all fun and games until you get permabanned
I mean it's still a game but then you're probably pretty mad about itParrot - WAPOW - Team ICA